The final report thesis entitled "Method of execution and variability investment cost of works of the Provincial Municipality of Alto Amazonas Yurimaguas district, 2010-2014," was the main problem Is there a relationship between the implementation modality and variability the investment cost of works of the Provincial Municipality of Alto Amazonas Yurimaguas district, period 2010-2014 to enable the viability of public works for the population? And whose overall objective was to determine the relationship between mode of execution and variability investment cost of works of the Provincial Municipality of Alto Amazonas Yurimaguas district, 2010-2014. The study worked with a type of non-experimental research, with a descriptive and correlational descriptive design level. The population sample corresponded to all information obtained from the studied variables (execution mode and variability...